Adjustable Pull Strap

reinforced zippers and stitching

there's nothing cooler than a real viz-a-ball - designed with your favorite bowling balls

Finish: 500 and 1000 Siaair/Crown Factory Compound

Wheels: 3" In-Line Skate Wheels

Track Kinetic Obsidian Select Weight:12 lbs. Adjustable Pull StrapTrack continues the popular Kinetic series in the Track Kinetic Obsidian. This ball features the modified Kinetic core which has a low RG, medium differential, and low mass bias. These components allow this ball to save its energy longer but use it quicker. Track has combined this core with a solid version of the DR 7 coverstock which gives length with a strong reaction at the backend. With a 500 2000 grit finish this ball is recommended for medium to